Clint van Zandt, Former FBI agent, says the FBI is still comfortable with their analysis North Korea is responsible for the attack on Sony. Jon Condra, Flashpoint Global Partners, provides perspective on the North Korea narrative.

Security experts are questioning if North Korea was behind the Sony hack. Jon Steinberg, Daily Mail North America CEO, and the "Squawk Alley" crew discuss the investment opportunity in tech to secure infrastructures.

A major hack attack has shut down Sony's PlayStation and Microsoft Xbox Live networks yesterday. Arik Hesseldahl, Re/code senior editor, discusses the group responsible and when services are likely to be completely restored.